/* ========================
           リセット & ベーススタイル
           ======================== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: #2c3e50;
            background: linear-gradient(135deg, #e3f2fd 0%, #f0f7ff 100%);
            min-height: 100vh;
        }

        /* ========================
           ヘッダー
           ======================== */
        .header {
            background: linear-gradient(135deg, #b3e5fc 0%, #81d4fa 100%);
            padding: 16px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 2px 8px rgba(3, 169, 244, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .app-title {
            font-size: 22px;
            font-weight: 600;
            color: #01579b;
            letter-spacing: 0.5px;
        }

        .language-selector {
            display: flex;
            align-items: center;
        }

        .language-dropdown {
            background-color: #ffffff;
            border: 2px solid #4fc3f7;
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 14px;
            color: #0277bd;
            cursor: pointer;
            min-height: 44px;
            transition: all 0.2s ease;
        }

        .language-dropdown:hover,
        .language-dropdown:focus {
            border-color: #0288d1;
            background-color: #e1f5fe;
            outline: none;
        }

        /* ヘッダーコンテンツ */
.header-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.app-subtitle {
    font-size: 13px;
    color: #01579b;
    font-weight: 400;
    opacity: 0.9;
}

/* サービス説明 */
.service-description {
    background: linear-gradient(135deg, #ffffff 0%, #f5fcff 100%);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(3, 169, 244, 0.1);
    border: 1px solid #b3e5fc;
    text-align: center;
}

.service-description p {
    font-size: 14px;
    color: #0277bd;
    line-height: 1.6;
    margin: 0;
}

/* タブレット対応 */
@media (min-width: 768px) {
    .app-subtitle {
        font-size: 14px;
    }

    .service-description {
        padding: 18px 24px;
        margin-bottom: 24px;
    }

    .service-description p {
        font-size: 15px;
    }
}

        /* ========================
           メインコンテンツ
           ======================== */
        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 16px;
        }

        /* ========================
           国・地域選択カード (横並び)
           ======================== */
        .location-cards-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 24px;
        }

        .location-card {
            background: linear-gradient(135deg, #ffffff 0%, #f5fcff 100%);
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(3, 169, 244, 0.1);
            border: 1px solid #b3e5fc;
        }

        .card-header {
            margin-bottom: 16px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: #0277bd;
            border-bottom: 2px solid #4fc3f7;
            padding-bottom: 8px;
        }

        .select-group {
            margin-bottom: 16px;
        }

        .select-group:last-child {
            margin-bottom: 0;
        }

        .select-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: #0288d1;
            margin-bottom: 8px;
        }

        .select-box {
            width: 100%;
            background-color: #ffffff;
            border: 2px solid #81d4fa;
            border-radius: 8px;
            padding: 12px 16px;
            font-size: 15px;
            color: #2c3e50;
            cursor: pointer;
            min-height: 44px;
            transition: all 0.2s ease;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%230288d1' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }

        .select-box:hover,
        .select-box:focus {
            border-color: #0288d1;
            background-color: #e1f5fe;
            outline: none;
        }

        /* ========================
           時刻リスト (スクロールなし全表示)
           ======================== */
        .time-list-container {
            background: linear-gradient(135deg, #ffffff 0%, #f5fcff 100%);
            border-radius: 16px;
            padding: 16px;
            box-shadow: 0 4px 12px rgba(3, 169, 244, 0.1);
            border: 1px solid #b3e5fc;
        }

        .time-list-header {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 2px solid #4fc3f7;
        }

        .time-column {
            font-size: 14px;
            font-weight: 600;
            color: #0277bd;
            text-align: center;
            padding: 8px;
        }

        .time-list {
            border-radius: 8px;
        }

        .time-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            padding: 4px 0;
            transition: background-color 0.2s ease;
        }

        .time-row:hover {
            background-color: #e1f5fe;
            border-radius: 8px;
        }

        .time-cell {
            font-size: 15px;
            color: #2c3e50;
            text-align: center;
            padding: 12px 8px;
            background-color: #f5fcff;
            border-radius: 8px;
            border: 1px solid #b3e5fc;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .time-row:hover .time-cell {
            border-color: #4fc3f7;
            background-color: #ffffff;
        }

        /* ========================
           タブレット (768px以上)
           ======================== */
        @media (min-width: 768px) {
            .main-content {
                padding: 32px 24px;
            }

            .location-cards-container {
                gap: 20px;
            }

            .app-title {
                font-size: 26px;
            }

            .location-card {
                padding: 24px;
            }

            .card-title {
                font-size: 20px;
            }

            .time-list-container {
                padding: 20px;
            }

            .time-column {
                font-size: 16px;
            }

            .time-cell {
                font-size: 16px;
                padding: 14px 12px;
            }
        }

        /* ========================
           PC (1024px以上)
           ======================== */
        @media (min-width: 1024px) {
            .main-content {
                padding: 40px 32px;
            }

            .location-cards-container {
                gap: 24px;
                max-width: 1000px;
                margin: 0 auto 24px;
            }

            .time-list-container {
                max-width: 800px;
                margin: 0 auto;
                width: 100%;
            }

            .header {
                padding: 20px 32px;
            }

            .app-title {
                font-size: 28px;
            }
            .app-subtitle {
                font-size: 15px;
            }
        
            .service-description {
                padding: 20px 32px;
                max-width: 1000px;
                margin: 0 auto 24px;
            }
        
            .service-description p {
                font-size: 16px;
            }
        }

        /* ========================
           アクセシビリティ
           ======================== */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        button:focus,
        select:focus,
        input:focus {
            outline: 3px solid #4fc3f7;
            outline-offset: 2px;
        }